US4168129A - Permanent-magnetically held closure cap for writing instruments - Google Patents
Permanent-magnetically held closure cap for writing instruments Download PDFInfo
- Publication number
- US4168129A US4168129A US05/770,829 US77082977A US4168129A US 4168129 A US4168129 A US 4168129A US 77082977 A US77082977 A US 77082977A US 4168129 A US4168129 A US 4168129A
- Authority
- US
- United States
- Prior art keywords
- cap
- permanent magnet
- pole
- ferro
- pole shoes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/08—Protecting means, e.g. caps
- B43K23/12—Protecting means, e.g. caps for pens
- B43K23/126—Protecting means, e.g. caps for pens with clips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/11—Magnetic
Definitions
- the present invention relates to a permanent-magnetically held closure cap for writing instruments.
- FIG. 1 is an axial section through the upper end of a ball point pen having a permanent-magnetically held closure cap according to the present invention placed on the pen.
- FIG. 2 is an axial section through the upper end of a fountain pen having a permanent-magnetically held closure cap according to a variation of the present invention placed on the pen.
- FIG. 3 is a cross section along the section line III--III of FIG. 1.
- FIG. 4 is an axial section of the magnetic system arranged in the cap of FIG. 2.
- FIG. 5 is a cross section along the section line V--V of FIG. 4 and
- FIG. 6 is a cross section along the section line VI--VI of FIG. 4.
- the closure cap of the present invention is characterized primarily in that the permanent magnet is arranged near the closed end of the cap, has a cross section having an essentially circular outer contour, and has pole shoes on its pole faces, the free ends of the pole faces engaging ferro-magnetic annular parts of the writing instrument when the cap is placed on the latter.
- the permanent magnet, with its pole shoes, is connected to the cap in any convenient manner, for instance by bonding.
- the permanent magnet may be magnetized either in or perpendicular to the longitudinal direction of the cap. If magnetized in the longitudinal direction, the permanent magnet has an axial bore shaped to correspond to the shape of the tip or head of the writing instrument and is provided with annular plates or discs which represent the pole shoes and are radial to the axial bore. If magnetized perpendicular to the longitudinal direction of the cap, the permanent magnets are provided with cup or shell-like pole shoes which cooperate with the permanent magnets at their poles and which project toward the opening of the cap where, on the writing instrument, an annular part is provided which engages the pole shoes in the axial direction.
- the permanent-magnetically held closure cap of the present invention may be used for any writing instrument, be it fountain pen, capillary tube pen with liquid ink, ball point pen, or fiber or felt tip pen.
- the ball point pen 4 shown in FIG. 1 has on its conical front end 5 a writing point or tip 6 which is a part of a ball point pen refill or filler which is not shown further.
- the conical front end 5 of the ball point pen 4 is comprised of ferro-magnetic metal or is plated or coated with such a metal.
- the closure cap 1 provided for this ball point pen 4 is closed in a manner known per se, at the back, with a threaded plug or stopper 2 which also serves for mounting a clip 3.
- a threaded plug or stopper 2 which also serves for mounting a clip 3.
- In the region of the closed end of the cap is an essentially cylindrical or--corresponding to the shape of the cap--slightly conical permanent magnet 7, which has an axially directed conical bore, the conical angle of which is adapted to the taper of the front end 5 of the ball point pen 4.
- This permanent magnet 7 is magnetized in the longitudinal direction so that a north pole is at its upper end and a south pole is at its lower end, or vice versa.
- the poles of the permanent magnet 7 are covered with annular pole shoes 8,9.
- the pole shoe 9 provided at the inner end of the cap 1 covers the entire adjacent end face of the magnet 7 and extends slightly beyond the axial bore of the magnet 7, so that the end face of the front end 5 of the ball point pen 4, at the writing point 6 proper, may engage the pole shoe 9 in the axial direction.
- the pole shoe 8 provided at the open end of the cap 1 likewise covers the adjacent pole surface of the magnet 7 and is beveled so as to be flush with the conical bore of the magnet 7 so that the pole shoe 8 can cooperate with the front end 5 of the ball point pen 4 over the entire circumference of the front end 5.
- a cap design can achieve a holding force of far more than 100 grams.
- the magnetic circuit between the two pole shoes 8 and 9 is closed by means of the ferro-magnetic material on the front end 5 of the ball point pen 4.
- the nib 16 of the fountain pen 14 shown in FIG. 2 is protected by a cap 11 which is similarly provided with a closure plug 12 and a clip 13.
- the permanent magnet 17 accommodated here in the cap 11, in contrast to the construction pursuant to FIG. 1, is magnetized in the transverse direction. In this manner essentially half cylindrical mantle-like pole faces result on the nearly cylindrical permanent magnet. These pole faces are covered by cup or shell-like pole shoes 19,20 which project toward the open end of the cap 11.
- a recess 18 extending between the two magnet poles may be worked or milled in on the end face of the magnet 17. This recess 18 makes it possible to bring the magnet 17 even closer to the writing nib 16.
- Barium ferrite crystals preferably embedded in synthetic material, for instance synthetic rubber, and axially parallelly aligned, serve as material for the permanent magnets.
- This material permits a particularly economical manufacture of the magnets, since it may be easily machined. In principle, however, other modern suitable permanent magnets are also usable.
- Ferritic chrome steel materials are suitable examples of soft magnetic material for the pole shoes and their contact surfaces, particularly with a view to avoiding corrosion. Tests have shown that the greatest holding forces result with pole shoes of small cross section of a material sold under the trade name Vanadium-Permendur and made and sold by Vakuum-Schmelze Hanau, West Germany. This material comprises approximately 49% cobalt, 2% vanadium and 49% iron.
- the soft magnetic materials are preferably subjected to a suitable heat treatment in a manner known per se to achieve maximum holding force.
- the remaining parts of the writing instrument should preferably comprise non-magnetic material. Since, for the construction of writing instruments, plastics, brass, austenitic steels, or precious metals are used almost exclusively, the installation of magnetic parts is generally economically possible without structural or material related changes to the remainder of the writing instrument.
Landscapes
- Pens And Brushes (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Clips For Writing Implements (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2606550A DE2606550C2 (en) | 1976-02-19 | 1976-02-19 | Magnetically held cap for writing implements |
DE2606550 | 1976-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4168129A true US4168129A (en) | 1979-09-18 |
Family
ID=5970231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/770,829 Expired - Lifetime US4168129A (en) | 1976-02-19 | 1977-02-22 | Permanent-magnetically held closure cap for writing instruments |
Country Status (4)
Country | Link |
---|---|
US (1) | US4168129A (en) |
JP (1) | JPS52106931A (en) |
DE (1) | DE2606550C2 (en) |
GB (1) | GB1519116A (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643604A (en) * | 1984-09-04 | 1987-02-17 | Bertin Enrico | Magnetic pen holder |
US4706834A (en) * | 1987-02-06 | 1987-11-17 | Farney Michael K | Coupler cover apparatus |
US4777968A (en) * | 1987-04-24 | 1988-10-18 | Cigar Savor, Inc. | Device for extinguishing cigars |
US4907604A (en) * | 1987-04-24 | 1990-03-13 | Cigar Savor, Inc. | Device for extinguishing and saving cigars |
US5027966A (en) * | 1989-09-12 | 1991-07-02 | Yadock David J | Storage containers with magnetic handling means |
US5085641A (en) * | 1989-07-17 | 1992-02-04 | Survival Technology, Inc. | Conveniently carried frequent use auto-injector with improved cap structure |
US5085642A (en) * | 1989-07-17 | 1992-02-04 | Survival Technology, Inc. | Conveniently carried frequent use autoinjector |
US6394677B2 (en) * | 2000-05-10 | 2002-05-28 | Excel Rite Enterprise Co., Ltd. | Hanging pen and cord thereof |
US20040065342A1 (en) * | 2002-10-04 | 2004-04-08 | Thomas Sherman | Dental floss dispenser and pen |
US6799918B1 (en) | 2003-09-16 | 2004-10-05 | William L. Scolnik | Selecting weight and balance in writing implements |
US20040228671A1 (en) * | 2003-05-17 | 2004-11-18 | Sunatori Go Simon | Auto-retractable pen mechanism with a cushion effect |
US20060140705A1 (en) * | 2004-12-28 | 2006-06-29 | Robert Kronenberger | Writing instrument with fountain pen configuration |
US20070048064A1 (en) * | 2004-09-17 | 2007-03-01 | Tong Kun Y | Highlight Ink Marker With An Automatic Magnetic Closure Apparatus |
WO2009048915A1 (en) * | 2007-10-10 | 2009-04-16 | Dubuc John D | A multifunction applicator for dispensing fluid |
US20090175672A1 (en) * | 2008-01-01 | 2009-07-09 | Thomas Killion | Two-piece magnetically actuated pen |
US7610937B1 (en) * | 2008-06-26 | 2009-11-03 | Pressure Specialist Inc. | Self-sealing regulator fill port protective/dust cover |
US20090297250A1 (en) * | 2008-05-28 | 2009-12-03 | Bon Artek Writing Industry Co., Ltd. | Pen cap and pen barrel coupling structure |
US20100110670A1 (en) * | 2008-11-05 | 2010-05-06 | Samuel Werth | Magnetically actuated flashlight |
US20130075301A1 (en) * | 2007-08-03 | 2013-03-28 | Olive Anne McLaughlin | Universal Lipstick Refill Case |
US8556527B1 (en) * | 2013-01-18 | 2013-10-15 | Yu-Hsing Chou | Lipstick case |
EP3016875A1 (en) * | 2012-09-18 | 2016-05-11 | Axilone Plastique | Container with magnetic closure |
US9451815B1 (en) * | 2014-01-15 | 2016-09-27 | William C. Murray | Applicator mounting apparatus and a method of using the same |
USD777362S1 (en) | 2013-01-01 | 2017-01-24 | Thomas Killion | Flashlight |
US9583028B2 (en) | 2014-08-04 | 2017-02-28 | Thomas Killion | Flashlight |
US20170088314A1 (en) * | 2015-09-25 | 2017-03-30 | Elc Management Llc | Magnetic Closure System For A Container With A Wand-Type Applicator And Wiper |
US11085585B2 (en) | 2018-10-30 | 2021-08-10 | Pressure Specialist, Inc. | Fill station |
US11085586B2 (en) | 2018-10-22 | 2021-08-10 | Pressure Specialist, Inc. | Regulated fill station |
US20240035775A1 (en) * | 2019-05-13 | 2024-02-01 | Paul D. Otten | Archery release aid mount |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2438231A (en) * | 1946-01-18 | 1948-03-23 | Schultz | Closure for fountain pens and the like |
US2949569A (en) * | 1957-08-26 | 1960-08-16 | Westinghouse Electric Corp | Permanent magnets |
US3009225A (en) * | 1959-10-13 | 1961-11-21 | Monarch Tool & Machinery Co | Separable two-part magnetic connector |
US3093113A (en) * | 1959-09-24 | 1963-06-11 | Andres S Reynoso | Bichromatic fountain pen |
US3141214A (en) * | 1962-09-19 | 1964-07-21 | Power Brake Parts Mfg Company | Magnetic pull-apart key holder |
US3400349A (en) * | 1966-01-14 | 1968-09-03 | Varian Associates | U-shaped magnetic circuit including three permanent magnets separated by pole pieces |
-
1976
- 1976-02-19 DE DE2606550A patent/DE2606550C2/en not_active Expired
-
1977
- 1977-02-18 JP JP1762977A patent/JPS52106931A/en active Pending
- 1977-02-21 GB GB7218/77A patent/GB1519116A/en not_active Expired
- 1977-02-22 US US05/770,829 patent/US4168129A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2438231A (en) * | 1946-01-18 | 1948-03-23 | Schultz | Closure for fountain pens and the like |
US2949569A (en) * | 1957-08-26 | 1960-08-16 | Westinghouse Electric Corp | Permanent magnets |
US3093113A (en) * | 1959-09-24 | 1963-06-11 | Andres S Reynoso | Bichromatic fountain pen |
US3009225A (en) * | 1959-10-13 | 1961-11-21 | Monarch Tool & Machinery Co | Separable two-part magnetic connector |
US3141214A (en) * | 1962-09-19 | 1964-07-21 | Power Brake Parts Mfg Company | Magnetic pull-apart key holder |
US3400349A (en) * | 1966-01-14 | 1968-09-03 | Varian Associates | U-shaped magnetic circuit including three permanent magnets separated by pole pieces |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643604A (en) * | 1984-09-04 | 1987-02-17 | Bertin Enrico | Magnetic pen holder |
US4706834A (en) * | 1987-02-06 | 1987-11-17 | Farney Michael K | Coupler cover apparatus |
US4777968A (en) * | 1987-04-24 | 1988-10-18 | Cigar Savor, Inc. | Device for extinguishing cigars |
US4907604A (en) * | 1987-04-24 | 1990-03-13 | Cigar Savor, Inc. | Device for extinguishing and saving cigars |
US5085642A (en) * | 1989-07-17 | 1992-02-04 | Survival Technology, Inc. | Conveniently carried frequent use autoinjector |
US5085641A (en) * | 1989-07-17 | 1992-02-04 | Survival Technology, Inc. | Conveniently carried frequent use auto-injector with improved cap structure |
US5027966A (en) * | 1989-09-12 | 1991-07-02 | Yadock David J | Storage containers with magnetic handling means |
US6394677B2 (en) * | 2000-05-10 | 2002-05-28 | Excel Rite Enterprise Co., Ltd. | Hanging pen and cord thereof |
US20040065342A1 (en) * | 2002-10-04 | 2004-04-08 | Thomas Sherman | Dental floss dispenser and pen |
US20040228671A1 (en) * | 2003-05-17 | 2004-11-18 | Sunatori Go Simon | Auto-retractable pen mechanism with a cushion effect |
US6799918B1 (en) | 2003-09-16 | 2004-10-05 | William L. Scolnik | Selecting weight and balance in writing implements |
US7331729B2 (en) | 2004-09-17 | 2008-02-19 | Kun Yuan Tong | Highlight ink marker with an automatic magnetic closure apparatus |
US20070048064A1 (en) * | 2004-09-17 | 2007-03-01 | Tong Kun Y | Highlight Ink Marker With An Automatic Magnetic Closure Apparatus |
US7594774B2 (en) * | 2004-12-28 | 2009-09-29 | Robert Kronenberger | Writing instrument with fountain pen configuration |
US20060140705A1 (en) * | 2004-12-28 | 2006-06-29 | Robert Kronenberger | Writing instrument with fountain pen configuration |
US20130075301A1 (en) * | 2007-08-03 | 2013-03-28 | Olive Anne McLaughlin | Universal Lipstick Refill Case |
WO2009048915A1 (en) * | 2007-10-10 | 2009-04-16 | Dubuc John D | A multifunction applicator for dispensing fluid |
US20090175672A1 (en) * | 2008-01-01 | 2009-07-09 | Thomas Killion | Two-piece magnetically actuated pen |
US8100598B2 (en) | 2008-01-01 | 2012-01-24 | Thomas Killion | Two-piece magnetically actuated pen |
US20090297250A1 (en) * | 2008-05-28 | 2009-12-03 | Bon Artek Writing Industry Co., Ltd. | Pen cap and pen barrel coupling structure |
US7610937B1 (en) * | 2008-06-26 | 2009-11-03 | Pressure Specialist Inc. | Self-sealing regulator fill port protective/dust cover |
US20100110670A1 (en) * | 2008-11-05 | 2010-05-06 | Samuel Werth | Magnetically actuated flashlight |
US20160176587A1 (en) * | 2012-09-18 | 2016-06-23 | Axilone Plastique | Container with magnetic closure |
EP3016875A1 (en) * | 2012-09-18 | 2016-05-11 | Axilone Plastique | Container with magnetic closure |
USD777362S1 (en) | 2013-01-01 | 2017-01-24 | Thomas Killion | Flashlight |
US8556527B1 (en) * | 2013-01-18 | 2013-10-15 | Yu-Hsing Chou | Lipstick case |
US9451815B1 (en) * | 2014-01-15 | 2016-09-27 | William C. Murray | Applicator mounting apparatus and a method of using the same |
US9583028B2 (en) | 2014-08-04 | 2017-02-28 | Thomas Killion | Flashlight |
US20170088314A1 (en) * | 2015-09-25 | 2017-03-30 | Elc Management Llc | Magnetic Closure System For A Container With A Wand-Type Applicator And Wiper |
US9957088B2 (en) * | 2015-09-25 | 2018-05-01 | Elc Management, Llc | Magnetic closure system for a container with a wand-type applicator and wiper |
US11085586B2 (en) | 2018-10-22 | 2021-08-10 | Pressure Specialist, Inc. | Regulated fill station |
US11560983B2 (en) | 2018-10-22 | 2023-01-24 | Pressure Specialist, Inc. | Regulated fill station |
US11085585B2 (en) | 2018-10-30 | 2021-08-10 | Pressure Specialist, Inc. | Fill station |
US20240035775A1 (en) * | 2019-05-13 | 2024-02-01 | Paul D. Otten | Archery release aid mount |
Also Published As
Publication number | Publication date |
---|---|
DE2606550A1 (en) | 1977-08-25 |
DE2606550B (en) | 1977-08-25 |
GB1519116A (en) | 1978-07-26 |
DE2606550C2 (en) | 1984-03-08 |
JPS52106931A (en) | 1977-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HERRNRING, GUNTHER DR. PINNDIEK 13, 2081 ALVESLOE, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MONTBLANC-SIMPLO GMBH.;REEL/FRAME:004991/0019 Effective date: 19880819 |
|
AS | Assignment |
Owner name: HERRNRING, GUNTHER, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MONTBLANC-SIMPLO GMBH;REEL/FRAME:005179/0385 Effective date: 19881003 Owner name: HERRNRING, GUNTHER, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MONTBLANC-SIMPLO GMBH;REEL/FRAME:005179/0388 Effective date: 19881003 |